Simulation of transverse position distributions of Cr atomic beam pre—collimated by three apertures

ZHANG Bao-wu; MA Yan; ZHANG Ping-ping

In order to study the effect of isotopes except for 52Cr on the transverse position distribution of Cr atomic beam,simulation was carried out for 1-D transverse laser cooling with a three-aperture pre-collimating slit by means of Monte Carlo method.The results show that isotopes except for 52Cr can make the background increased and affect characteristics of each part of the atomic beam: the central maximum value decreases 9.5% and its full width at half maximum(FWHM)increases 2.9% in the center;while the maximum value increases 25% with little increase of the FWHM in either side.It concludes that the existence of the isotopes except for 52Cr has little effect on the center maximum value and FWHM of the center part atomic beam.

Corresponding author: ZHANG Bao-wu, zhangbaowu1978@gmail.com;

1. College of Metrology & Measurement Engineering, China Jiliang University, Hangzhou 310018, China;

2. State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China;

3. Tongji University, Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, Shanghai 200092, China

Received Date: 2011-08-23

Accepted Date: 2011-09-07

Available Online: 2012-05-25

Abstract: In order to study the effect of isotopes except for 52Cr on the transverse position distribution of Cr atomic beam,simulation was carried out for 1-D transverse laser cooling with a three-aperture pre-collimating slit by means of Monte Carlo method.The results show that isotopes except for 52Cr can make the background increased and affect characteristics of each part of the atomic beam: the central maximum value decreases 9.5% and its full width at half maximum(FWHM)increases 2.9% in the center;while the maximum value increases 25% with little increase of the FWHM in either side.It concludes that the existence of the isotopes except for 52Cr has little effect on the center maximum value and FWHM of the center part atomic beam.

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Reference (16)

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Simulation of transverse position distributions of Cr atomic beam pre—collimated by three apertures

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References

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通讯作者: 陈斌, bchen63@163.com

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